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Income Taxes (Details) - USD ($)
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Operating Loss Carryforwards      
Income (loss) before provision for income taxes $ (10,657,000) $ (19,033,000) $ 20,927,000
Current:      
Federal 3,000 (317,000) 848,000
State 18,000 41,000 34,000
Foreign 910,000 (62,000) 918,000
Total current 931,000 (338,000) 1,800,000
Deferred:      
Federal 144,000 (9,000) (591,000)
State 6,000 (7,000) (4,000)
Foreign 53,000 514,000 980,000
Total deferred 203,000 498,000 385,000
Total provision for income taxes $ 1,134,000 $ 160,000 $ 2,185,000
Reconciliation of effective income tax rates and the U.S. statutory federal income tax rate      
Statutory federal income tax rate (as a percent) 21.00% 21.00% 21.00%
State income taxes, net of federal tax benefits (as a percent) (0.20%) 1.60% 0.10%
Valuation allowance (as a percent) (32.30%) (25.70%) (19.30%)
Stock-based compensation (as a percent) (2.40%) (1.70%) 0.70%
Foreign tax rate differential (as a percent) (1.50%) 6.10% (2.60%)
Foreign tax incentives (as a percent) 1.90% 0.10% (3.50%)
Foreign income inclusion (as a percent)     18.90%
Tax effect in equity method loss or gain from unconsolidated affiliates (as a percent) 2.80% 0.40% (3.00%)
Other (as a percent) 0.10% (2.60%) (1.80%)
Effective tax rate (as a percent) (10.60%) (0.80%) 10.50%
Deferred tax assets:      
Net operating loss carryforwards $ 17,220,000 $ 14,362,000  
Accruals, reserves and other 4,542,000 4,349,000  
Credit carryforwards 207,000 206,000  
Operating lease liability 268,000 325,000  
Gross deferred tax assets 22,237,000 19,242,000  
Valuation allowance (20,722,000) (17,462,000)  
Total deferred tax assets 1,515,000 1,780,000  
Deferred tax liabilities:      
Operating lease right-of-use assets (261,000) (323,000)  
Total net deferred tax assets (included in other assets) 1,254,000 1,457,000  
Increase (decrease) in valuation allowance $ 3,300,000 5,600,000  
Realized benefits of tax rate reduction (as a percent) 10.00%    
Unrecognized tax benefit would favorably impact the effective tax rate in future periods if recognized $ 1,100,000 1,100,000  
Domestic Tax Authority      
Deferred tax liabilities:      
Operating loss carryforwards 46,400,000    
State      
Deferred tax liabilities:      
Operating loss carryforwards $ 108,000    
Foreign Tax Authority      
Deferred tax liabilities:      
EIT income tax rate (as a percent) 25.00%    
Preferential tax rate (as a percent) 15.00%    
Benefit from foreign tax rate $ 348,000 $ 47,000 $ 900,000